Recommend a new Hub Motor supplier for Aptera? Just for fun!

[Logic11]

Aptera was going to use 2 to 3 hub motors by Elaphe:
75kw
700Nm
23kg
per motor. ( I assume that's max, not er... constant? Their prototypes don't seem to have anywhere near that kind of oomph!?)

https://www.researchgate.net/publication/341422145_The_Bearing_Stiffness_Effect_on_In-Wheel_Motors

Winter testing: advancing mass-produced in-wheel propulsion systems - Elaphe

In-wheel drive is not only energy efficient and compact, it is also proving to be reliable, durable and can operate in the toughest of conditions.

in-wheel.com

But have now announced they are going with 1 Vitesco EMR4 with a differential etc.
ie: FWD only.

That means no more ASC and Torque Vectoring etc.,
In fact it means that the 'car' will be stuck as soon as one wheel loses traction, be way more unstable and and just be shit, comparatively.

If there is a group of experienced intelligent people, capable of coming up with an alternate hub motor source for the 30 000 Apteras a year; its here!
Pity they are oblivious to that...
So, as a fun mental exercise, what would you suggest?


Due to the unbeatable efficiency of coasting/free-wheeling, all I have so far is the brilliant Freegen system on ...something..?
Perhaps the QSMOTOR 273 12000W V3 E-Car Hub Motor:

QS MOTOR 12000W QS273 V3 Electric Car Wheel Hub Motor

It‘s QS MOTOR 12000W QS273 V3 70H Electric Car Wheel Hub Motor for 100KPH Speed Electric Car, maximum power 24000W, CB above 60cm, PCD could be customized.

www.cnqsmotor.com

I'm sure that at around 75 000 motors per year there are a good number of reliable, efficient motor manufacturers, willing to design with them, they would have been better off going with..?

 

[Chalo]

Unsprung weight won't be any less of a problem with Aptera than it is with other e-cars. The downsides of hub motors in that car are probably more significant than the downsides of an open differential and 2WD vs AWD.

 

[Logic11]

Unsprung weight won't be any less of a problem with Aptera than it is with other e-cars. The downsides of hub motors in that car are probably more significant than the downsides of an open differential and 2WD vs AWD.

Ye I considered that.

Heavy Hub Motors: Unsprung weight issue solved: Hub motor = in wheel active suspension system!?

The unsprung weight of hub motors is a huge issue in EVs, which is why you don't see them at all in production EVs. (Well... not that I'm aware of..?) In wheel suspension, between the hub and rim, would be 'The Cure', but that's noT! easy: The inventions so far just dont look trustworthy...

endless-sphere.com

But Aptera seemed to have their suspension sorted thx to some tuning by some specialist suspension company or other and I was/am keen to see how well it worked.
So lets pretend hub motors are made from carbon nanotubes and graphene already and weigh 0.0001 bugger-nothing-O-grams for this daydream.

 

[lnanek]

On my hard tail bicycle I have a suspension seat post and a bar full of shock absorbing material. Other people use a suspension stem as well. Ride is plenty smooth for my commute, even over rough, in construction pavement that's irritating on my other bikes.

Maybe a recumbent/trike or three wheeler car like Aptera can similarly just suspend the seat and wheel. Would be fine for my use. Then they can use hub motors.

Although, personally, I would be fine with them ditching hub motors if they made the rear wheel the drive wheel. Don't really trust fwd. Isn't the front too light for that? Only reason I don't like mid drives is I don't want to bother changing gears. So as long as they have an automatic transmission or CVT, I don't really care if they use hub motors or not, as long as they get traction even going uphill.

 

[Hillhater]

In fact it means that the 'car' will be stuck as soon as one wheel loses traction, be way more unstable and and just be shit, comparatively.

Ever heard of “Traction Control” ?….its used on most modern AWD cars.
Front wheel drive was one of the biggest handling/safety improvements to be introduced to cars.

 

[Hillhater]

Perhaps the QSMOTOR 273 12000W V3 E-Car Hub Motor:

?? That is quite a little shy of the 75kW originally intended !